Q. The formula for the pumping out test in an unconfined aquifer is given by _________

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Q. The permeability of the aquifer is ________ if the drawdown is 4m, discharge is 40litres/sec, thickness of confined aquifer is 30m and the radius of the well is 0.1m. The radius of influence is taken as 245m.

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Q. In the field determination, pumping must continue at a ________

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Q. The U.S. Bureau of Reclamation (Earth manual 1960) has devised two types of pumping-in tests _________

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Q. The formula for the open-end test is given by _________

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Q. The coefficient of permeability by Packer for length greater than ten times the radius test is given by ________

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Q. The coefficient of permeability by Packer for length in the range 10r > L ≥r test is given by ________

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Q. When two wells are situated near each other, the discharge in individual well is ________

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Q. The discharge for drawdown of well is given by _______

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Q. The formula for discharge for two wells at distance B is given by ____________

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Q. The formula for discharge for three wells forming an equilateral triangle at distance B on side is given by ____________

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Q. Two tube wells of 20cm diameter each are 100m apart. The coefficient of permeability is 4.15*10¯⁴ m/s, drawdown is 4m and aquifer is 30m thick. If radius of influence is 245m, what is the discharge in each well?

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Q. In a tube well of 20cm diameter in a soil with coefficient of permeability of 4.15*10¯⁴ m/s, drawdown is 4m and aquifer is 30m thick. If radius of influence is 245m, what is the discharge in each well?

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Q. Three tube wells of 20cm diameter each forming an equilateral triangle at distance 100m on side. The coefficient of permeability is 4.15*10¯⁴ m/s, drawdown is 4m and aquifer is 30m thick. If radius of influence is 245m, what is the discharge in each well?

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Q. In a artesian well, when water level falls below the top of confined aquifer, then this type of well is known as ______

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Q. The pumping-in test was devised by _________

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Q. The type of hydraulics of flows towards open well is __________

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Q. The discharge of an open well can be determined by, which of the following method?

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Q. Which of the following well, does not penetrate to the full depth of an aquifer?

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Q. In Recuperation test, the expression (K/A ) is known as ___________

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